- Front seat inner belt LH (Seat belt buckle switch LH)
- Center airbag sensor assembly
- No. 1 floor wire
| Last Modified: 7-3-2017 | 6.8:8.0.40 | Doc ID: RM000001D3Y006X |
| Model Year Start: 2007 | Model: LX470 | Prod Date Range: [08/2006 - ] |
| Title: SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: B0126/27,B0127/27; Seat Belt Buckle Switch LH Circuit Malfunction; 2007 MY LX470 [08/2006 - ] | ||
|
DTC |
B0126/27 |
Seat Belt Buckle Switch LH Circuit Malfunction |
|
DTC |
B0127/27 |
Seat Belt Buckle Switch LH Malfunction |
DESCRIPTION
The seat belt buckle switch LH circuit consists of the center airbag sensor and the front seat inner belt LH (seat belt buckle switch LH). DTCs B0126/27 and B0127/27 are recorded when a malfunction is detected in the seat belt buckle switch LH circuit.
|
DTC No. |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
B0126/B0127/27 |
Seat belt buckle switch LH circuit malfunction |
|
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
|
1. |
CHECK WIRE HARNESS (TO GROUND) |
|
(a) Turn the ignition switch OFF. (b) Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds. (c) Measure the resistance between the body ground and terminal LBE+ of the C31 connector on the center airbag sensor side between the front seat inner belt LH (seat belt buckle switch LH) and the center airbag sensor. Standard resistance: 1 MΩ or higher |
|
| NG |
|
|
|
2. |
CHECK WIRE HARNESS (TO +B) |
|
(a) Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds. (b) Turn the ignition switch ON. (c) Measure the voltage between the body ground and terminal LBE+ of the C31 connector on the center airbag sensor side between the front seat inner belt LH (seat belt buckle switch LH) and the center airbag sensor. Standard voltage: Below 1 V |
|
| NG |
|
|
|
3. |
CHECK FRONT SEAT INNER BELT ASSEMBLY LH |
|
(a) Connect the connector of the front seat inner belt LH (seat belt buckle switch LH). (b) Unfasten the seat belt for the driver's seat. (c) Measure the resistance between the body ground and terminal LBE+ of the C31 connector on the center airbag sensor side between the front seat inner belt LH (seat belt buckle switch LH) and the center airbag sensor. Standard resistance: 1 kΩ to 1.6 kΩ |
|
| NG |
|
|
|
4. |
CHECK FRONT SEAT INNER BELT ASSEMBLY LH |
|
(a) Fasten the seat belt for the driver's seat. (b) Measure the resistance between the body ground and terminal LBE+ of the C31 connector on the center airbag sensor side between the front seat inner belt LH (seat belt buckle switch LH) and the center airbag sensor. Standard resistance: 100 Ω to 500 Ω |
|
| NG |
|
|
|
5. |
CHECK CENTER AIRBAG SENSOR ASSEMBLY |
|
(a) Turn the ignition switch OFF. (b) Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds. (c) Connect the connector to the center airbag sensor. (d) Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds. (e) Turn the ignition switch ON, and wait for at least 10 seconds. (f)
Clear the DTC stored in memory
(g) Turn the ignition switch OFF, and wait for at least 10 seconds. (h) Turn the ignition switch ON, and wait for at least 10 seconds. (i)
Check the DTC
OK: DTC B0126/B0127/27 is not output. |
|
![2007 MY LX470 [08/2006 - ]; SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: DTC CHECK / CLEAR](../../../../stylegraphics/info.gif "2007 MY LX470 [08/2006 - ]; SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: DTC CHECK / CLEAR")
| NG |
|
| OK |
|
|
|